About Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Water Quality In US Improves After Ban On Phosphorus-Containing Lawn Fertilizers

by Aruna on August 21, 2009 at 10:30 AM
Font : A-A+

Water Quality In US Improves After Ban On Phosphorus-Containing Lawn Fertilizers

Water quality in the United States (US) has improved after the ban on lawn fertilizers, indicates a new study with evidence.

In an effort to keep lakes and streams clean, municipalities in the US are banning or restricting the use of phosphorus-containing lawn fertilizers, which can kill fish and cause smelly algae blooms and other problems when the phosphorus washes out of the soil and into waterways.

Advertisement

"It's one of those things where political organizations take the action because they believe it's the environmentally conscious thing to do, but there's been no evidence offered in peer-reviewed literature that these ordinances actually have a salutary effect," said John Lehman, professor of ecology and evolutionary biology at the University of Michigan.

Now, such evidence exists in a study done by Lehman and students Douglas Bell and Kahli McDonald.

The study shows that phosphorus levels in the Huron River dropped an average of 28 percent after Ann Arbor adopted an ordinance in 2006 that curtailed the use of phosphorus on lawns.
Advertisement

Phosphorus is naturally plentiful in southeast Michigan soils, so fertilizing established lawns with the nutrient is generally unnecessary.

Using statistical models, Lehman and undergraduate student Julie Ferris figured out how much sampling would be required to confidently detect a 25 percent decrease in phosphorus concentrations.

"We came up with the result that for most of the river that runs through Ann Arbor, we should be able to detect a change of that magnitude by sampling once a week for one summer or two summers, depending on the sampling station," said Lehman.

"Right away, we started to see decreases," Lehman said.

After the first year of data collection, it was clear that phosphorus concentrations were lower after the ordinance was enacted than before.

Though that explanation seems likely, public education efforts and general increased environmental awareness among Ann Arbor residents also may have entered in.

At any rate, the study already has attracted the attention of the Southeast Michigan Council of Governments (SEMCOG), which invited Lehman to present the study results at a meeting earlier this year, and may well generate interest beyond Michigan's borders.

Source: ANI
ARU
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Test Your Knowledge on Lung Transplantation
Baldness can be Cured and Prevented: let us see How!
Drinking Beer or Wine Every Day Could Cause Age-related Diseases
View all
Recommended Reading
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Organic Foods Water - Nutrient that Beats the Heat Tips for Healthy Fasting During Ramadhan Water Matters: Why You Need to Drink Enough Water Everyday 

Most Popular on Medindia

Drug Side Effects Calculator How to Reduce School Bag Weight - Simple Tips Iron Intake Calculator Selfie Addiction Calculator Drug - Food Interactions Pregnancy Confirmation Calculator Accident and Trauma Care Post-Nasal Drip A-Z Drug Brands in India Sanatogen
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use